title: Rosai-Dorfman disease presenting as a parotid mass.
abstract: Sinus histiocytosis with massive lymphadenopathy (SHML) is a rare, benign disease of unknown aetiology. This disease typically presents with massive, painless cervical lymphadenopathy but may occur in a wide variety of extranodal sites. Our report describes a 71-year-old man who presented with a discrete, unilateral parotid mass which was clinically suggestive of a primary salivary gland tumour. Initial cytological examination of a fine needle aspirate specimen taken from the mass demonstrated a discohesive cell population with nuclear atypia, raising the possibility of malignancy. However, excision of the mass and histological examination enabled a definitive diagnosis to be made.
authors.affiliation: Department of Otolaryngology, Queen Alexandra Hospital, Cosham, Portsmouth, UK.
authors.forename: L
authors.initials: L
authors.lastname: Norman
authors.forename: A C
authors.initials: AC
authors.lastname: Bateman
authors.forename: G W
authors.initials: GW
authors.lastname: Watters
authors.forename: V
authors.initials: V
authors.lastname: Singh
authors.forename: A V
authors.initials: AV
authors.lastname: Spedding
mesh_terms: D000368:Aged; D001707:Biopsy, Needle; D015618:Histiocytosis, Sinus / Q000175:diagnosis*; D006801:Humans; D008297:Male; D010306:Parotid Gland / Q000473:pathology*